Attaching means for plastic members



May 23, 1950 N. BARBIERI 2,508,900

ATTACHING MEANS FOR PLASTIC MEMBERS Filed March 16, 1944 ATTORNEYS Patented May 23, 1950 *QFl-Fl-CE ATTAGHING lVIEANS TFORQBLA'STIG MEMBER S Nicholas Bai bi'eri, -:Brovidence, R.'- l., --ass'ignor to Uncas Manufacturing Ccmpany, a -c'onpnration of Rhode Island Application March 16, 19,44,1senn No.' '526,777

G Claims. 1

This invention relates to a means for attach- .ing "two members togetherand is illustrated in connection with 'attachingin assembled relation two or more characterswhichmay be worn-as an article .of adornment"uponthep'erson.

.At the present time it is popular to wear as a brooch or'the'like some article 'of personal significance, such forinstan'ce as initi'als,;up0n the dress of theperson. In many .cases such assembly of initials is individually .formed, .to order, by hand operation. 'It is, however, desirable for "the retail sales persons to be able to assemble such letters at the time the sale is made in a secure and readily assembled manner.

One of the objects of this invention is to provide an arrangement so that two or more letters may be assembled upon an attaching bar by the retail sales person without previous experience along mechanical lines.

Another object of this invention is to provide an arrangement of attaching means which may be formed at the same time that plastic letters are molded without need for careful tool operation thereon.

Another object of this invention is to provide an arrangement of assembly which may be utilized on various letters of the alphabet.

Another object of this invention is to provide an assembly which may be attached with the hands or fingers but which would require tools for detachment of the letters from the assembly, thus making a permanent or semi-permanent assembly when put together.

With these and other objects in View, the in- -ve'ntion consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a plan view of the assembly of two letters upon a bar by the means which is the subject of this invention;

Fig. 2 is a rear view thereof;

Fig. 3 is a rear view of one of the letters;

Fig. 4 is a rear view of the other of the letters;

Fig. 5 is a sectional view on line 5-5 of Fig. 1;

Fig. 6 is a sectional view on line 6--5 of Fig. 4;

Fig. 7 is a, plan view of the attaching bar;

Fig. 8 is a sectional view on line 8-8 of Fig. '7; and

Fig. 9 is a section on line 9-9 of Fig. 5 showing fragmentally and on a greatly enlarged scale the pin as expanding the split stud into engagement with the retaining wall of the socket.

In proceeding with this invention, I recess one of the members of the assembly, for instance the character or letter, so as to providea-"s'urround- *in'g retaining wall and a central pin projecting ception of the pin'in the recess which expands the stud to tightly engage the retaining'wall. The parts and shaping of theattached means-are such that-theymaybe readily and'compl'et'ew molded.

With reference "to thedraw-ings III design-ates one member, I I anothermember ofthe assembly, while the bar, to which these members are attached, is designated I2. Each of the members It! and II is provided on its rear surface with three recesses I3, I4, and I5, equally spaced and, as shown in Fig. 6, each comprising a depression or recess l6 extending inwardly from the face ll or rear surface of the member. A pin I8 projects from the bottom of the recess I6 to a distance beyond the back surface I! and is tapered, as shown on a larger scale in Fig. 9. Each of these recesses has a surrounding outer retaining wall I9 which provides a friction surface against which an attaching stud is locked.

The member Or bar I2 to which the members is and II are attached is shown in Figs. '7 and 8 as consisting of a base portion Zll from which there projects upwardly annular or ring shaped studs 2!, 22, and 23, which are spaced the same as the recesses I3, I4, and I5 and are of a size to enter the recesses. Each of these studs has a central opening 24 extending through it while the wall of the stud is split, which is shown as extending completely through the base, as at 25, in the case of the stud 23 while a common split extending through the bar designated 26 is illustrated for the studs 2I and 22. Two sets of these studs are shown on the bar l2 in order that the bar may have attached thereto two members or characters as shown in the Figs. 1, 2 and 5. A longer bar with an additional set of studs may be provided if additional members are to be a part of the assembly.

To provide the assembly, one member, such as I l, is placed into engagement with the bar l2 so that the studs El, 22, and 23 will extend into the recesses I3, I4, I 5 while the central pin I8 of each recess will extend into each of the central openings 24, and being tapered, will expand each of the studs as it is forced into the recess, as shown in Fig. 9, so that the outer surface of each of the studs will bind firmly against the surrounding outer retaining wall I9 of each of the recesses. As the members are forced further into engagement the binding on the retaining walls will be 3 tighter. After one member such as I l is assembled on the bar another member such as It may be assembled on the bar that the assembly shown in Figs. 1, 2, and 5 may be provided.

In order to attach the bar to the article of clothing a pin stem 30 may be secured by joint 3| to the back of the bar while a catch 32 may be provided for clasping the end of the pin stem thereto.

I claim:

1. Means for attaching two members together comprising on one member a pair of hollow center studs projecting from said member with a common slot extending between the hollow centers of said studs to cause said studs to be resilient, the other of said members being provided with recesses to receive said studs and a pin extending from the bottom of each of said recesses to enter each of said hollow studs and expand the same against the surrounding walls of each of said recesses.

2. Means as set forth in claim 1 wherein the member with the studs is a bar and the other member is an ornament.

3. An assembly of members comprising one member provided with a cylindrical recess defined by a surrounding wall, another member provided with a split ring-shaped stud in said recess and engaging said walls and having a central Opening therein and a pin fixed to the recessed member and extending from the bottom of said recess axially of and spaced from the cylindrical surrounding wall into said opening and engaging the walls thereof and expanding said split ring to cause the same to be gripped between said pin and said surrounding walls.

4. An assembly as in claim 3 wherein said pin is tapered.

5. An assembly as in claim 3 wherein the surrounding walls of said recesses and opening are cylindrical.

6. An assembly as in claim 3 wherein said members are non-metallic and the split ring and pin are respectively integral each with one of said members. NICHOLAS BARBIERI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 95,024 King Sept. 21, 1869 231,234 Mumford Aug. 17, 1880 1,647,781 Carr Nov. 1, 1927 2,002,466 Belden May 21, 1935 2,178,055 Stupell Oct. 31. 1939 FOREIGN PATENTS Number Country Date 325,743 Great Britain Feb. 27, 1930 

